Financial calendar
Key financial dates for Costain
| Financial year-end | 31 December 2020 |
| Trading update | 5 January 2021 |
| Full year results | 16 March 2021 |
| Annual Report mailing | 1 April 2021 |
| Annual General Meeting | 6 May 2021 |
| Half year-end | 30 June 2021 |
| Half-year trading update | 1 July 2021 |
| Half-year results 2021 | 25 August 2021 |
| Financial year-end | 31 December 2021 |
The financial calendar may be updated from time to time throughout the year.